About Varistors

KOA Speer Varistors

A varistor (also known as a voltage-dependent resistor, or VDR) is a resistor whose resistance changes as the voltage across it increases or decreases. Varistors are typically constructed from a ceramic material containing semiconductor materials such as silicon and germanium. They have a relatively large resistance at low voltage levels, but as the voltage increases, their resistance drops significantly, allowing more current to flow through them. This feature makes them useful for absorbing transient voltages, which are sudden increases in the voltage that can occur when a device is powered on or off. Varistors are also commonly used to provide overvoltage protection, where they absorb and dissipate excessive voltages before they reach sensitive electronic components.

Varistors

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(Ex. GST)(▲▼)		Enter Qty ProductVoltage Rating DCVoltage Rating ACClamping VoltageDiameterPeak Surge CurrentSurge Energy RatingCapacitanceOperating Temperature RangeTermination StylePackagingPackage / CaseSeriesMounting StyleVaristor VoltageMinimum Operating TemperatureMaximum Operating TemperatureQualification
  
                      
NVD07UCD068


Varistors 68Volt 7mm
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

KOA Speer 0
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USD 0.0646
Multiples of: 1

Mov56 V40 V135 V7 mm250 A3.3 J - 40 C to + 125 CRadialReel Nvd 68 V- 40 C+ 85 CAec - Q200
NVD05UCD056


Varistors 56Volt 5mm
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

KOA Speer 0
6 to 16 Weeks Calender.png

USD 0.0661
Multiples of: 1

Mov45 V35 V123 V5 mm125 A1.3 J - 40 C to + 125 CRadialReel Nvd 56 V- 40 C+ 85 CAec - Q200
NVD07UCD033


Varistors 33Volt 7mm
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

KOA Speer 0
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USD 0.0673
Multiples of: 1

Mov26 V20 V65 V7 mm250 A1.6 J - 40 C to + 125 CRadialReel Nvd 33 V- 40 C+ 85 CAec - Q200
NVD07SCD082


KOA Speer Varistors 82Volt 7mm
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

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USD 0.0673
Multiples of: 1

Mov65 VDC50 VAC135 V7 mm600 A3.5 J-- 40 C to + 125 CRadialReel Nvd 82 VDC- 40 C+ 85 CAec - Q200
NVD05UCD047


Varistors 47Volt 5mm
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

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USD 0.0684
Multiples of: 1

Mov38 V30 V104 V5 mm125 A1.1 J - 40 C to + 125 CRadialReel Nvd 47 V- 40 C+ 85 CAec - Q200
NVD07UCD150


Varistors 150Volt 7mm
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

KOA Speer 0
6 to 16 Weeks Calender.png

USD 0.0764
Multiples of: 1

Mov125 V95 V250 V7 mm1.25 kA9 J - 40 C to + 125 CRadialReel Nvd 150 V- 40 C+ 85 CAec - Q200
NVD07UCD220


Varistors 220Volt 7mm
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

KOA Speer 0
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USD 0.0764
Multiples of: 1

Mov180 V140 V360 V7 mm1.25 kA13.5 J - 40 C to + 125 CRadialReel Nvd 220 V- 40 C+ 85 CAec - Q200
NVD07UCD240


Varistors 240Volt 7mm
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

KOA Speer 0
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USD 0.0764
Multiples of: 1

Mov200 V150 V395 V7 mm1.25 kA15 J - 40 C to + 125 CRadialReel Nvd 240 V- 40 C+ 85 CAec - Q200
NVD07UCDMHTA068


Varistors 68 Volts VARISTOR
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

KOA Speer 0
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USD 0.0764
Multiples of: 1

          Ammo Pack U   + 85 CAec - Q200
NVD05SCD082


Varistors 82Volt 5mm
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

KOA Speer 0
6 to 16 Weeks Calender.png

USD 0.0776
Multiples of: 1

Mov65 V50 V145 V5 mm200 A1.7 J - 40 C to + 125 CRadialReel Nvd 82 V- 40 C+ 85 CAec - Q200
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